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遗传中紧空间与散射分解
引用本文:燕鹏飞,涂振坤.遗传中紧空间与散射分解[J].数学杂志,2005,25(1):107-110.
作者姓名:燕鹏飞  涂振坤
作者单位:1. 南京师范大学数学系,江苏,南京,210097;安徽大学数学系,安徽,合肥,230039
2. 安徽大学数学系,安徽,合肥,230039
基金项目:国家自然科学基金资助项目 (1 0 1 71 0 43 )
摘    要:本文证明了可数仿紧(中紧、亚紧)空间有类似Junnila的刻画,遗传中紧空间不具有类似Junnila的刻画,并给出了每个散射分解有紧有限的开膨胀的充要条件.

关 键 词:中紧空间  遗传中紧  可数仿紧(中紧、亚紧)  紧有限  散射分解
文章编号:0255-7797(2005)01-0107-04

HEREDITARILY MESOCOMPACT AND SCATTERED PARTITION
YAN Peng-fei ,TU Zhen-kun.HEREDITARILY MESOCOMPACT AND SCATTERED PARTITION[J].Journal of Mathematics,2005,25(1):107-110.
Authors:YAN Peng-fei    TU Zhen-kun
Institution:YAN Peng-fei 1,2,TU Zhen-kun2
Abstract:In the paper, we prove that countable paracompact (mesocompact, metacompact) spaces have the Junnila's chracterization and hereditarily mesocompact spaces don't have it. Also, we give the sufficient conditions for a space having the property that its every scattered partition has a compact-finite open expansion.
Keywords:mesocompact  hereditarily mesocompact  countable paracompact (mesocompact    metacompact)  compact-finite  scattered partion
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